Filling-positioning device for looms.



E. S. STIMPSON.

FILLING POSITIONING DEVICE FOR LOOMS.

APPLICATION FILED DEC-26, 1914.

1,172,750. Patented Feb. 22, 1916.

2 SHEETS-SHEET l- Fig.1.

WIInesses. Inventor.

I Edward SSIimpson.

THE COLUMBIA PLANOGRAPH C0., WASHINGTON, D. :4

E. S. STIMPSON.

FILLING POSITIONING DEVICE FOR LOOMS.

APPLICATION FILED DEC.26, 1914.

2 SHEETS-SHEET 2.

Fig.2.

Fig.3.

2o WITnesses. InvenTor. mw 33 27 Edwurds.sfimpson,

b m WIQW THE coLUMBm PLANOGRAPH co., WASHINGTON, D. c.

UTED STATES PATENT OFFICE.

EDWARD S. STIMPSON, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A. CORPORATION OF MAINE.

FILEING-IPOSITIONING DEVICE FOR LOOIVIS.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed December 26, 1914. Serial No. 879,008.

It is common in automatic filling replen-V ishing looms to provide means for parting or severing the filling, close to the filling carrier containing the filling supply to be abandoned at the time a change of filling carriers is effected. Such filling parting means are frequently attached to and moved with the shuttle feeler which prevents filling transfer taking place when a shuttle has been improperly boxed at the transfer end of the loom.

It sometimes happens that the filling trailing behind the filling carrier from its position at the transfer end of the loom does not get into the path or field of operation of the thread parting means, and hence is not severed. This particularly happens where the cloth being woven is of narrow width and the distance from the hopper to the usual temple thread cutter or edge of the cloth is comparatively long. The failure of the trailing filling thus to be severed may be due to the shuttle rebounding slightly or sulficiently to lower the run of filling onto or adjacent the bottom of the raceway or to other causes. When the failure to part the filling takes place an undue strain is placed upon the pick last beaten in causing liability of injury to the cloth and the broken filling end left after transfer takes place will not be cut by the usual temple thread cutter at the selvage, but will be likely to snap back or to be worked into the shed and woven in causing an imperfection.

It is the object of the present invention to provide an improved form of means for positively insuring the position of the filling to be parted in the field of operation of the parting means by elevating the filling from the lay and positioning it accurately upon the call for filling replenishment.

The object and nature of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the appended claims.

The drawings represent so much of the mechanism of an automatic weft replenishing loom of the, Northrop type as is necessary to a disclosure of the present invention together with the parts forming the preferred form of this invention applied thereto.

In the drawings: Figure 1 is a top plan view broken out at each side and in the center of a suflicient portion of an automatic filling replenishing loom with the preferred embodiment of this invention applied thereto as is necessary for an illustration of the invention; Fig. 2 is a view in transverse cross section of the construction shown in Fig. 1; Fig. 3 is a view similar to Fig. 2 showing a portion of the mechanism with the parts in a diiferent position.

The general construction and operation of the automatic filling replenishing loom herein illustrated with the exception of the parts required to embody the patented invention is familiar and is disclosed in a number of patents such as those to C. H. Draper No. 683,423 granted September 24:, 1901 and A. E. Rhoades LTO. 1,020,622 granted March 19, 1912.

The lay 1 having the shuttle boxes 2 at the feeling end, and 3 at the transfer end, the hopper or feeder 4: containing a supply of full filling carriers such as the ordinary bobbins, the breast beam 5, weft fork 6, the filling feeler 7 the transferrer arm 8, and the connections by which upon the indicationof a predetermined degree of exhaustion of the running filling by the feeler 7 the transferrer arm 8 is operated to transfer the filling as by forcing a fresh bobbin from the hopper into the shuttle therebeneath and ejecting the spentbobbin, are all familiar and need no detailed description. It will be remembered, however, that upon the call for filling replenishment as by the indication of a predetermined degree of exhaustion in the running filling by the feeler 7 a controller rock shaft 9 is rocked to effect the operation and positioning of the parts necessary to secure the transfer, and in the preferred form The loom is shown as provided. with suitable filling parting means and the ordinary filling parting means carried by the ordinary shuttle feeler, such as shown in the patents above referred to, is illustrated. The shuttle feeler shown at 10 comprises a swing-- ing arm pivoted on the loom frame and adapted to swing into position so that as the lay heats up it will feel for the boxed shuttle immediately in the rear of its proper position so that if the shuttle is improperly boxed the shuttle feeler will strike the shuttle and through the usual connections prevent transfer taking place. The shuttle feeler is moved. into operative position by suitable connections upon the call for filling replenishment. The thread parting means may also be of any suitable construction and operation. and is herein illustrated at 11 as comprising a pair of blades carried and supported by the shuttle feeler 10. It is shown as the same construction as illustrated in the patents above referred to and comprises not only a filling parter but a filling clamp to seize and hold the end. of the filling and carry it back into the path of the usual temple thread cutter 12.

1th this general description of the old and well known parts of the loom the parts forming the preferred form of the present invention will now be described and may readily be understood.

The lay at a suitable point preferably closely adjacent the end of the shuttle box 3 is provided with a groove 13 extending transversely across the raceway. A suitable bracket lat is secured to the rear of the lay adjacent this groove and this bracket thus for all practical purposes becomes a part of the lay. Upon this bracket is movably and preferably slidingly mounted a positioning head 15. This head extends into the groove 13 so that when the head is moved across the raceway it will be certain to pass beneath and seize the filling lying upon or extending above the raceway. The face 16 of this head as shown is reentrant, that is, the surfaces of the face converge toward the center, and at the center in the preferred form a notch 17 is formed. The head is of such size and proportion that when the filling is at the center or in the notch 17 and the head is moved forward the filling will with certainty be brought into the field of operation of the thread parting means It will thus be seen that if the head he moved acrossthe lay at the proper time the filling wherever it may extend will be guided by the reentrant form of the face into the center of the face or into the notch 17, and will thus be properly positioned in the field of operation of the filling parting means.

Aineans is illustrated for securing the movement of the positioning head. In the form shown the positioning head has a rearwardly extending slotted shank 18. A stud or set screw 19 passing through the slot :of

the shank is secured to the bracket 14 and guides the head in its movement. A lever 20 is pivoted at 21 to the shank 18 of the head and has a slotted fulcrum on the bracket 14. This slotted fulcrum as shown comprises a stud 22 on the bracket 14 and a segmental slot 23 formed in .the lever 20. The lever extends downwardly, is offset and provided with an extended face 24:. A spring 25 con-1 nects the lever 20 with a part 26 rigid with the lay and acts normally to maintain the positioning head in retracted position as shown in Fig. 2.

A hunter lever 27 is fulcrumed at 28 on the breast beam or some portion of the loom frame rigid therewith to swing horizontally and as this lever is of somewhat extended length it is arranged each side of the fill crum to slide at 29 on tracks formed onbrackets 30 bolted to the loom frame. At

its forward end this lever is provided with 20 and the positioning head. and connected 1 parts are retracted as shown in Fig. Upon the call for filling replenishment the controller rock shaft 9 is actuated in the usual manner swinging the depending arm slot 31 swinging the rear end of the hunter lever 27 to the right and into the path of the face 2i of the lever 20. As the lay beats up with the trailing filling extending along the raceway to the filling carrierto be abandoned, upon transfer, the face 2st of the lever 20 comes in contact with the hunter lever 27. The positioning head is thereupon slid forwardly across the raceway and the filling wherever it may be is guided by the reentrant face into the notch 17, or, in other words guided into proper horizontal aline- 32 rearwardly and thus through the earnment with the filling parting means 11, and L carried forwardly elevated from the raceway and brought positively into the field of operation of the filling parting means. The

slotted fulcrum of the lever 20 constitutes a giveway connection so that upon the continued beat up the lever 20 moves upon its fulcrum without affecting the position of the positioninghead as shown in Fig.3.

It will thus be seen that there is herein provided a filling positioning device of simple construction. which positively insures the proper position of the filling in the field of operation of the filling parting means and prevents any imperfection due to a failure of the filling to be seized by the filling parting means.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In an automatic weft replenishing loom, a shuttle feeler movably mounted on the loom frame and when moved into operative position acting to feel for and detect when the lay heats up an improperly boxed shuttle at the transfer end of the loom, filling parting means carried by said shuttle feeler to part the filling in the rear of the shuttle when the lay beats up, a positioning head mounted on the lay to move across and above the raceway and provided with a face acting when the head is moved forward to aline the filling horizontally with, and position it in the field of operation of, the filling parting means.

2. In an automatic weft replenishing loom, a shuttle feeler movably mounted on the loom frame and when moved into operative position acting to feel for and detect when the lay beats up an improperly boxed shuttle at the transfer end of the loom, filling parting means carried by said shuttle feeler to part the filling in the rear of the shuttle when the lay beats up, a positioning head mounted on the lay to move across and above the raceway and provided with a reentrant face acting when the head is moved forward to aline the filling horizontally with, and position it in the field of operation of, the filling parting means.

3. In an automatic weft replenishing loom, a shuttle feeler movably mounted on the loom frame and when moved into operative position acting to feel for and detect when the lay beats up an improperly boxed shuttle at the transfer end of the loom, filling parting means carried by said shuttle feeler to part the filling in the rear of the shuttle when the lay beats up, a positioning head mounted on the lay to move across and above the raceway and provided with a reentrant face having a central positioning notch whereby when the head is moved forward the filling is carried by the face into the notch and positioned in the field of operation of the filling parting means. I

In a loom, the combination of automatic filling replenishing means, means for parting the filling of the filling carrier to be abandoned adjacent to said filling carrier, a lay provided with a groove extending transversely of the raceway, a positioning head movably mounted on the lay extending into said groove and provided with a reentrant face whereby when the head is moved forward the filling is guided by the face to the center of the head and positioned in the field of operation of the filling part ing means.

5. In a loom the combination of automatic filling replenishing means, means for partpivoted to said head and having a slotted fulcrum on the lay, a spring connected to said lever and acting to retract the head, and a hunter lever fulcrumed on the loom frame and moved upon the call for filling replenislr ment into the path of said lever whereby upon the beat up the positioning head is moved into operative position and upon completlon of the beat up the said lever moves on its fulcrum to maintain the positioning head in operative position without injury to the parts.

6. In a loom the combination of automatic filling replenishing means, means for parting the filling of the filling carrier to be abandoned adjacent to said filling carrier, a lay provided with a groove extending trans versely of the raceway, a positioning head slidably mounted on the lay extending into said groove and provided with a reentrant face acting when the head is slid forward to carry the filling to the center of the face and position it in the field of operation of the filling parting means, a lever pivoted to said head and fulcrumed on the lay, a spring connected to said lever and acting to retract the head, a hunter lever fulcrumed on the loom frame and moved upon the call for filling replenishment into the path of the said lever, and a giveway connection interposed between said head and bunter lever fulcrum whereby upon the beat up the positioning head is moved into operative position, and upon completion of the beat up the giveway connection acts to maintain the head in operative position without injury to the parts.

7. In an automatic filling replenishing loom, filling parting means, a positioning head having a rearwardly extending slotted shank, a stud passing through said slot and secured to the lay in the rear of the raceway, a lever pivoted to said shank and provided with a segmental fulcrum slot and a depending end, a fulcrum stud passing through said segmental slot and secured to the lay, a spring extending from said lever forwardly to a point on the lay, and a hunter device carried by the loom frame and moved into the path of the depending end of the lever upon the call for filling replenishment.

8. In an automatic filling replenishing loom, means to part the filling at a point above the raceway and adjacent the filling carrier to be abandoned, a positioning head mounted opposite the filling parting means on the lay to move across and above the raceway and provided with a reentrant face,

and means for moving the positioning head forward upon the call for filling replenishment whereby the filling is guided by the face to the center of the head and positioned in the field of operation of the filling parting means.

9. In an automatic filling replenishing loom, means to part the filling at a point above the raceway and adjacent the filling carrier to be abandoned, a positioning head mounted opposite the filling parting means on the lay to move across and above the raceway and provided with a reentrant face having a central positioning notch, and means for moving the positioning head forward;

upon, the call for filling replenishment Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

